SICK LFP Inox Betriebsanleitung Seite 40

EN
Operating instructions
Level
SP
RP
activ
inactiv
1)
Only Pulldown.
6.6 Description of the IO link functionality
The LFP uses IO link technology which can be used in networks. SICK assumes that the integrity and
the confidentiality of the data and rights which are affected by the use of this technology are ensured
by the customer. In any case, appropriate security measures, such as network separation, fire walls,
virus protection or patch management, are always to be taken by the customer, depending on the
situation.
Physical layer
SIO mode
Min. cycle time
Speed
Process data width
The SICK LFP level sensor has two digital outputs. Both switching outputs are transferred as process
data via IO link. The Q2 switching output is also switched at pin 2 of the M12 plug. In the so-called
SIO mode, the C/Q1 switching output is switch 4 of the M12 plug. In communication mode, this pin 4
is reserved exclusively for communication.
With "frame type 2.2," 16-bit information from the level sensor is transferred. Bit 0 indicates the
switching state of switch Q1 and bit 1 the switching state of switch Q2.
The remaining 14 bits indicate the analog measured value of the level sensor in millimeters. The level
is measured from the end of the probe upwards in the direction of the process connection.
MSB
Index Name
(decimal)
40 8014638/ZQ14/2017-08-25 © SICK AG • Level sensors • Germany • Subject to change without notice
6 Operation
t
Error signal
yes
2.3 ms
COM2 (38.4 kBaud)
16 bit (frame type 2.2)
Level value
Format Access Value
LFP
LSB
Q2 Q1
Description